A 16-year-old boy allegedly stole a car and a gun and then fired once at a state trooper who stopped him on a Pennsylvania interstate Sunday morning, state police said.

Sean Patrick Sellers, of Mifflinburg, is being charged as an adult after police said he fired once at Trooper Michael Quinn around 7 a.m. Sunday on Interstate 81 near Chambersburg, about 50 miles southwest of Harrisburg. The trooper fired back, but neither man was injured.

Sellers was waiting to be arraigned Sunday night and it wasn't immediately clear if he had an attorney.

Sellers allegedly stole the .22-caliber pistol and Chevy Impala from a home in Mifflinburg Sunday morning, state police said, before he was stopped about 100 miles away on the southbound side of I-81 for failure to drive within a single lane. Sellers allegedly fired once at Quinn, police said, before the trooper returned fire after ducking for cover behind his vehicle. Sellers then surrendered to Quinn and other troopers.

The teen faces charges including criminal attempted homicide of a law enforcement officer, aggravated assault, recklessly endangering another person, and theft charges.

Quinn was placed on limited duty pending an internal investigation, which police said is routine for any department-involved shooting.

The southbound side of the highway was closed until Sunday afternoon while police investigated.

Police said the shooting is not related to a road rage incident 15 miles further south on I-81 on Jan. 4 that left a 28-year-old Maine man dead. State police said this month that Timothy Davison was shot multiple times after he was followed from Maryland into Pennsylvania. No arrests have been made in that shooting. There was also a shooting seven hours earlier and 50 miles away from where Davison was killed, but police said it wasn't connected.